This excerpt taken from the PT 20-F filed Mar 27, 2009.
On August 2, 2007, Vivo signed a stock purchase agreement with Telpart to acquire control of Telemig Participações and Tele Norte Participações and 22.72% and 19.34%, respectively, of their total
capital for an aggregate amount of R$1.2 billion, subject to certain price adjustments. On April 3, 2008, Vivo announced that (1) all conditions precedent to the acquisition of Telemig were fulfilled, (2) Vivo had paid the purchase price in the total amount of R$1.23 billion, including R$70.5 million in connection with the acquisition of subscription rights and (3) Vivo had acquired, as of that date, the direct control of Telemig. See "Item 4Information on the CompanyOur BusinessesBrazilian Mobile Business."
On December 20, 2007, Vivo signed a stock purchase agreement with Telemar for the sale of all the shares of Tele Norte that it was acquiring from Telpart under the terms of the stock purchase agreement dated August 2, 2007. This additional stock purchase agreement was signed to facilitate Vivo's acquisition of the shares of Telemig from Telpart. On April 3, 2008, Vivo transferred to Telemar all the shares of Tele Norte that it acquired from Telpart. See "Item 4Information on the CompanyOur BusinessesBrazilian Mobile Business."